CN102276364A - Drought-resistant water-retaining seed coating agent containing gamma-polyglutamic acid and preparation method thereof - Google Patents
Drought-resistant water-retaining seed coating agent containing gamma-polyglutamic acid and preparation method thereof Download PDFInfo
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- 239000011248 coating agent Substances 0.000 title abstract description 39
- 229920002643 polyglutamic acid Polymers 0.000 title abstract description 18
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- 235000013619 trace mineral Nutrition 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 43
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- 229920004890 Triton X-100 Polymers 0.000 claims description 8
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- Pretreatment Of Seeds And Plants (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a drought-resistant water-retaining seed coating agent containing gamma-polyglutamic acid, which comprises the following components in percentage by mass: 0.02-1% of gamma-polyglutamic acid, 0.5-5% of adhesive, 0.05-2% of surfactant, 0.2-6% of trace elements, 0.5-9% of bactericide, 0.2-5% of insecticide, 0.5-1.2% of warning color and the balance of water. The seed coating agent has high-activity biological functions, has the functions of promoting rooting, promoting germination, improving soil, retaining water, increasing fertilizer, enhancing efficiency, chelating toxic heavy metals and the like, and is suitable for vegetable varieties such as tomatoes, green vegetables, cucumbers, hot peppers, rapes and the like, economic crops such as cotton, soybeans and the like and grain crops such as wheat, corns and the like.
Description
Technical field
The invention belongs to the seed treatment applied technical field, be specifically related to a kind of drought-resistant water-preserving coating agent for seed that contains gamma-polyglutamic acid-and preparation method thereof.
Background technology
Planting the clothing agent is a class preparation that is used for seed pelleting, has film forming characteristics, can make the breeding stdn, has multiple functions such as plant protection effect again.Its advantage has: (1) water-swellable in soil is ventilative and not dissolved, thereby makes seed normally germinate, make agriculture chemical slowly to discharge, and has the subterranean pest-insect of killing, control seed germ, improve rate of emergence, reduce the seed usage quantity, improve crop varieties.Plant the clothing agent and be close to seed, the efficacy of a drug is concentrated, the utilization ratio height, thereby than application methods such as spraying, soil treatment province medicine, saving of labor, province's kinds.(2) plant the hidden use of clothing agent, to atmosphere, soil is pollution-free, does not hinder natural enemy, and is safe in utilization; After planting clothing agent coating seed, effective constituent can progressively discharge and to crop germinating growth toxicological harmless effect, plant the clothing film and have water-permeable, ventilation property, does not influence seed life and respiration.
It is carrier with the seed that seed pelleting is one, and planting the clothing agent is raw material, and the dressing machine is means, and multidisciplinary achievements such as collection biology, chemical industry, machinery are the comprehensive seed treatment new technology of one.
Moisture just lacked originally very much in the drought desert area, but be dispersed in running off of root system of plant soil moisture more than 80% on every side with evaporation and permeation form, only there is the moisture about 10% to be absorbed by root, this has not only caused the serious waste of the water resources of original shortage, also caused the arid area rate of emergence very low even can not normally germinate, the drought-resistant water-preserving coating agent for seed can adsorb the moisture of self hundreds of even thousands of times, is very necessary to the arid area seed pelleting therefore.Drug coating was difficult to be degraded in soil in the past, easily caused environmental pollution, and therefore eco-friendly coating agent for seed is the problem that people study always.
(γ-poly-glutamic acid, be called for short γ-PGA) is that the L-glutamic acid monomer is with a kind of polyamino acid (structure as follows) of γ-carboxyl with amino condensation mutually to gamma-polyglutamic acid-.
Have a large amount of active higher free side chain carboxyl groups on the molecular chain of γ-PGA, can between intramolecule or molecule, form hydrogen bond, good water solubility, water-retentivity is strong.γ-PGA as fertilizer sources synergistic agent uses, the characteristic of its biodegradability absorption enhancer is fully played and is utilized, both can further increase the output of crop, can also play good slow releasing function to fertilizer, fertilizer has been prolonged about 4 times than conventional fertilizers the time of releasing in soil.In the absorption that promotes crop, also played the effect that fertilizer component is decomposed and run off fast that suppresses.
γ-PGA has the physics and chemistry and the biological characteristics of many uniquenesses such as splendid biodegradability, film-forming properties, one-tenth fibering, plasticity-, cohesiveness, moisture retention, can be used for makeup, food, dispersion agent, sequestrant, building coating, dustproof, agriculture field and paying attention to environmental protection, emphasizing today of Sustainable development, γ-PGA and derivative thereof have very wide application prospect.
Summary of the invention
Technical problem to be solved by this invention provides a kind of drought-resistant water-preserving kind clothing agent that contains gamma-polyglutamic acid-.
Another technical problem that the present invention also will solve provides the preparation method of above-mentioned kind of clothing agent.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of drought-resistant water-preserving kind clothing agent that contains gamma-polyglutamic acid-, it comprises following component by mass percent:
Gamma-polyglutamic acid-0.02～1%,
Tackiness agent 0.5～5%,
Tensio-active agent 0.05～2%,
Trace element 0.2～6%,
Sterilant 0.5～9%,
Sterilant 0.2～5%,
Warning colouration 0.5～1.2%,
All the other are water.
Wherein, described gamma-polyglutamic acid-is the pure product of gamma-polyglutamic acid-, or replaces the pure product of gamma-polyglutamic acid-with gamma-polyglutamic acid-salt or the wettable powder that comprises the fermenting culture of gamma-polyglutamic acid-or contain gamma-polyglutamic acid-; The gamma-polyglutamic acid-salt or the consumption of wettable powder that comprises the fermenting culture of gamma-polyglutamic acid-or contain gamma-polyglutamic acid-are in wherein contained gamma-polyglutamic acid-, and the gamma-polyglutamic acid-that promptly wherein contains need satisfy above-mentioned prescription and require (0.02～1 quality %).The preferred mass percent of gamma-polyglutamic acid-is 0.02-0.5%.
Above-mentioned, gamma-polyglutamic acid-is preferably used the form of the wettable powder that contains gamma-polyglutamic acid-, described gamma-polyglutamic acid-wettable powder prepares as follows: microbial fermentation is produced gamma-polyglutamic acid-, after the fermentation ends, extraction obtains the gamma-polyglutamic acid-extract, and drying is pulverized and made again, wherein, in the gamma-polyglutamic acid-wettable powder, the content of gamma-polyglutamic acid-is 10～20%.Specifically, the gamma-polyglutamic acid-wettable powder can be prepared as follows, the fermented liquid molecular weight of fermentation ends is 2000-4000kDa, transferring fermented liquid pH with sulfuric acid earlier is 2-4,70-130 ℃ of hydrolysis 0.2-3h is 4～100KDa with the polyglutamic acid molecular weight degradation, adjusts back pH6-7 with NaOH, the alcohol that adds 2-3 times of volume precipitates, and the collecting precipitation drying and crushing promptly gets the gamma-polyglutamic acid-wettable powder.But the present invention is not limited to above-mentioned gamma-polyglutamic acid-wettable powder agent method, produce bacterial strain by existing any gamma-polyglutamic acid-, the gamma-polyglutamic acid-that any existing fermentation process prepares can be used as the gamma-polyglutamic acid-wettable powder through extraction, product dry, that pulverizing obtains again.
Wherein, described tackiness agent is any one or a few the mixture in polyacrylamide, polyoxyethylene glycol, starch and the Sudan Gum-arabic.The optimization polypropylene acid amides.The preferred mass percent scope of tackiness agent is 2-4%.
Wherein, described tensio-active agent is the mixture of any one or two kinds in Triton X-100 and the Voranol EP 2001.Preferred Triton X-100.The preferred mass percent scope of tensio-active agent is 0.3-1%.
Wherein, described trace element is any one or a few the mixture in manganese salt, zinc salt, molysite, boron salt, mantoquita, molybdenum salt, magnesium salts, sylvite and the calcium salt.Preferably sulfuric acid manganese, zinc sulfate, ferrous sulfate, sulfuric acid boron, copper sulfate, molybdenum trisulfate, sal epsom, vitriolate of tartar or lime carbonate etc.The preferred mass percent scope of trace element is 0.2-4%.
Wherein, described sterilant is any one or a few the mixture in triazolone, derosal, paclobutrazol, m-tetrachlorophthalodinitrile and the fenaminosulf.Preferred derosal.The preferred mass percent scope of sterilant is 0.5-5%.
Wherein, described sterilant is any one or a few the mixture in carbofuran and the Provado.Preferred Provado.The preferred mass percent scope of sterilant is 1-4%.
Wherein, described warning colouration is redness, green, yellow, black, blueness or white pigment.Preferred red pigment, for example red iron oxide.The preferred mass percent scope of warning colouration is 0.5-1%.
The method for preparing the agent of above-mentioned drought-resistant water-preserving kind clothing is that thorough mixing in gamma-polyglutamic acid-, binding agent, tensio-active agent, trace element, sterilant, sterilant, warning colouration and the water adding mixing tank of formula ratio is evenly made.
The using method of above-mentioned drought-resistant water-preserving kind clothing agent is, seed is placed tablets press, spray into above-mentioned drought-resistant water-preserving kind clothing agent carrying out coating pelletizing get final product coating seeds.Wherein, the mass ratio of seed weight and the agent of drought-resistant water-preserving kind clothing is (20-35): 1.
Drought-resistant water-preserving kind clothing of the present invention agent is applicable to vegetable crop, cash crop or food crop seed, is particularly useful for vegetable seed.
Beneficial effect: the present invention compared with prior art has following characteristics:
1, coating agent for seed of the present invention has the function of retaining, water conservation and water supply, has improved the drought-resistant ability of seed.Polyglutamic acid water retention capacity in the outer covering of the seed dressing is strong, can effectively slow down the gravity dehydration in the nursery soil and spread around dehydration, the increase seed and effective water content of seedling root soil, strengthen the water-permeable and the air permeability of soil, can significantly reduce water number of times and water the water yield of seeding and seedling raising, seedling-growing time in advance.
2, the gamma-polyglutamic acid-composition can be controlled the release rate of nutrition, little fertile isoreactivity in the coating agent for seed of the present invention, make behind the planting seed, in this long period of seed germination, growth of seedling and even mid-term, can effectively prevent disease and pest and guarantee that crop roots.
3, the gamma-polyglutamic acid-in the coating agent for seed basal component of the present invention behind seed germination, can form layer protecting film on plant root hair top layer, not only have the function of protection root hair, dissolving, storage, conveying and the absorption that more can effectively improve fertilizer.Stop sulfate radical, phosphate radical, oxalate and metallic element to produce precipitating action, make phosphorus, calcium, magnesium and trace element in the more effective absorption soil of crop energy.Promote the growth of crop root, strengthen disease resistance.
4, has multiple fertilizer efficiency, γ-PGA is that pure biological fermentation drying forms, can not cause any pollution to environment, wherein contain various elements and plant-growth regulator such as nitrogen, phosphorus, potassium, therefore played the effect of nutrition, physiological regulation simultaneously, can reach drought-relief, raising seed germination speed and percentage of germination, enhancing crop anti-adversity ability, help the growth of crop.
5, coating agent for seed of the present invention contains various trace elements and nutritive ingredient, has functions such as the seed of promotion roots, and can effectively improve seed germination rate, and seedling is neat, seedling is strong, effect of increasing production is obvious, and the quality of agricultural-food can be provided again simultaneously.
6, coating agent for seed of the present invention can absorb water and dilute the salt concentration in kind of the clothing agent when meeting water, can reduce the disadvantageous effect of kind of clothing agent to seed germination.
7, the present invention is by the potted plant germination test of soybean seeds in the greenhouse, be contrast with undressed soybean seeds, contain the agent of gamma-polyglutamic acid-kind clothing behind the drought stress and can promote seedling plant dry weight, root dry weight, the long increase of root, improve the activity of soybean leaves SOD, POD.The agent of kind clothing can promote the speed of growth of plant, has improved the protective enzyme activity of blade and the resistance of soybean seedling.
Description of drawings
Fig. 1 is the variation of different treatment cucumber seeds percentage of germination under different drought is coerced.Wherein, different lowercases represent that the different treatment cucumber seeds is at the identical significant difference under the concentration (α=0.05) of coercing.
Embodiment
According to following embodiment, the present invention may be better understood.Yet, those skilled in the art will readily understand that the described concrete material proportion of embodiment, processing condition and result thereof only are used to illustrate the present invention, and should also can not limit the present invention described in detail in claims.
Embodiment 1: the drought-resistant corn seed pelleting.
The drought-resistant corn seed pelleting is made of following quality percentage composition raw material:
Gamma-polyglutamic acid-0.2%, polyacrylamide 2%, Triton X-100 1%, manganous sulfate 0.5%, zinc sulfate 0.1%, lime carbonate 0.1%, copper sulfate 0.01%, triazolone 1%, derosal 3%, carbofuran 2%, red pigment 0.5%, all the other compositions are water.
Above kind of clothing raw material added the abundant mixing of mixing tank make corn seed coating agent.During seed pelleting the corn seed of 20 mass parts and the coating agent for seed of 1 mass parts are made the dressing corn seed in tablets press.
The gamma-polyglutamic acid-coating seeds of making is carried out field test the 7-8 month in 2010, do controlled trial with dressing corn seed (CK) not, each sows 100, and the number of emerging is listed in the table below 1 with seedling rate.
Table 1 γ-PGA kind clothing agent is to the influence of emergence of corn rate
By the data of table 1 as can be seen, formed tangible difference through the seed and the contrast of dressing, the seeding stage has shifted to an earlier date 3-5 days, seedling rate has improved more than 20%, and drought-resistant ability is stronger, alleviates and here withers, can recover growth after meeting rain, grow for the corn growth of later stage and have laid a good foundation.
Embodiment 2: drought resisting cotton seeds dressing.
Drought resisting cotton seeds dressing is made of following quality percentage composition raw material:
Gamma-polyglutamic acid-sodium salt 0.8%, polyacrylamide 2%, Voranol EP 2001 2%, manganous sulfate 0.1%, zinc sulfate 0.1%, ferrous sulfate 0.1%, triazolone 2%, fenaminosulf 3%, carbofuran 3%, red pigment 0.6%, all the other compositions are water.
Above kind of clothing raw material added the abundant mixing of mixing tank make sead coating agent for cotton seeds.The cotton seeds of 25 mass parts and the coating agent for seed of 1 mass parts are made the cotton coating seeds in tablets press.
The gamma-polyglutamic acid-coating seeds of making is carried out field test the 4-5 month in 2010, do controlled trial with dressing cotton seeds (CK) not, each sows 200, and the number of emerging is listed in the table below 2 with seedling rate.
Table 2 γ-PGA kind clothing agent is to the influence of cotton seedling rate
By the data of table 2 as can be seen, the rate of emergence of coated processing significantly improves, germinating time in advance, the gamma-polyglutamic acid-in the dressing has the effect of water-absorbing-retaining, can provide more seed germination needed moisture, is more conducive to the germination of seed.
Embodiment 3: drought resisting Semen Brassicae campestris dressing.
Drought resisting Semen Brassicae campestris dressing is made of following quality percentage composition raw material:
Gamma-polyglutamic acid-wettable powder 2% (gamma-polyglutamic acid-that wherein contains 20% (w/w)), Sudan Gum-arabic 5%, Triton X-100 0.6%, manganous sulfate 0.05%, zinc sulfate 0.15%, molybdenum trisulfate 0.1%, copper sulfate 0.01%, m-tetrachlorophthalodinitrile 3%, Provado 0.5%, red pigment 0.9%, all the other compositions are water.
Above kind of clothing raw material added the abundant mixing of mixing tank make the agent of rape kind clothing.The Semen Brassicae campestris of 30 mass parts and the coating agent for seed of 1 mass parts are made the rape coating seeds in the dressing machine.
Tested in October, 2010 and carry out in the Da Tang of city of Kunshan village.With common Semen Brassicae campestris (CK) is contrast, sowing in October in 2010 15, and on November 15th, 2010 transplanted, and seedling quality control time is on November 14th, 2010.
Table 3 γ-PGA kind clothing agent is to the influence of rape seedling quality
Annotate: above result repeats mean value for each
As shown in Table 3, the comparison of the rape rice shoot height of seedling of Cotton seeds is according to improving 14.8%, and root is long to increase by 5.1%, the rice shoot dry weight increases by 3.6%, show that the polyglutamic acid coating agent for seed can improve the rape seedling quality, the growth of rape root, stem and leaf is had very big promoter action, can promote the formation of seedling.
Embodiment 4: drought resisting soybean seeds dressing.
Drought resisting soybean seeds dressing is made of following quality percentage composition raw material:
Gamma-polyglutamic acid-wettable powder 5% (gamma-polyglutamic acid-that wherein contains 20% (w/w)), polyoxyethylene glycol 2%, Triton X-100 0.3%, manganous sulfate 0.1%, zinc sulfate 0.1%, sulfuric acid boron 0.02%, molybdenum trisulfate 0.02%, derosal 3%, carbofuran 1%, red pigment 0.7%, all the other compositions are water.
Above kind of clothing raw material added the abundant mixing of mixing tank make the agent of soybean kind clothing.The soybean seeds of 35 mass parts and the coating agent for seed of 1 mass parts are made the soybean coating seeds in the dressing machine.
For the examination soybean varieties is middle yellow 13, with the agent of above prescription kind clothing soybean seeds is carried out Cotton seeds, be contrast with Cotton seeds soybean seeds (CK) not, and test is adopted and repeated for three times, and district's group is arranged at random, and 6 go and distinguish, and goes long 5m, line-spacing 0.6m, sub-district area 18m
2
Table 4 different treatment is to the influence of the soybean yields and the formation factor thereof
As shown in Table 4, the branch amount of soybean coating seeds, joint number, pod number, grain number, the heavy promoter action that all has in various degree of grain, the soybean seeds of Cotton seeds improves 12.6% than untreated seed per mu yield.
Embodiment 5: drought resisting radish seed dressing.
Drought resisting radish seed dressing is made of following quality percentage composition raw material:
Gamma-polyglutamic acid-fermenting culture 40% (gamma-polyglutamic acid-that wherein contains 2% (w/w)) 0.8%, polyacrylamide 3%, Voranol EP 2001 1.5%, manganous sulfate 0.02%, zinc sulfate 0.3%, ferrous sulfate 0.1%, copper sulfate 0.01%, paclobutrazol 1%, Provado 0.3%, red pigment 1%, all the other compositions are water.
Above kind of clothing raw material added the abundant mixing of mixing tank make the agent of radish kind clothing.The radish seed of 27 mass parts and the coating agent for seed of 1 mass parts are made the radish coating seeds in tablets press.
The gamma-polyglutamic acid-dressing radish seed of making is carried out field test in September, 2010, do contrast with dressing radish seed (CK) not, each sows 500, and each handles 125, repeats for 4 times.
Table 5 polyglutamic acid draught-resistant seed coating agent is to the influence of radish germinating energy, percentage of germination, germination index
Annotate: different lowercases are illustrated in significant difference on 0.05 level in the same row.
As can be seen from Table 5, compare with CK, coating seeds has improved germinating energy, percentage of germination and the germinating time of radish seed, and has reached significant difference.
Embodiment 6: drought resisting cucumber seeds dressing.
Drought resisting cucumber seeds dressing is made of following quality percentage composition raw material:
Gamma-polyglutamic acid-wettable powder 5% (gamma-polyglutamic acid-that wherein contains 20% (w/w)), Sudan Gum-arabic 4%, Triton X-100 0.2%, manganous sulfate 0.03%, zinc sulfate 0.2%, triazolone 3%, carbofuran 2%, red pigment 1.2%, all the other compositions are water.
Above kind of clothing raw material added the abundant mixing of mixing tank make the agent of seed of Fructus Cucumidis sativi clothing.The cucumber seeds of 30 mass parts and the coating agent for seed of 1 mass parts are made the cucumber coating seeds in the dressing machine.
Cucumber variety is excellent No. 26 of vegetables spring treasured, the cucumber seeds of coated processing is a treatment group, the seed of dressing is not control group (CK), treatment group and control group cucumber seeds be earlier with tap water imbibition 6h at room temperature, and putting into the germination box then, to add 10ml concentration respectively be 0%, 5%, 10%, 15%, 20% PEG
6000Stress solution, 25 ℃ of germination temperatures claim quality to keep the skin wet every 24h, make that osmotic stress concentration keeps relative stability between processing.
The results are shown in Figure 1.The cucumber seeds percentage of germination of Cotton seeds is than coating seeds percentage of germination height not under the identical as shown in Figure 1 drought stress, and arid more percentage of germination differs big more, at PEG
6000Concentration is 10% and reached significant difference at 15% o'clock.The water conservation water-retaining capacity of polyglutamic acid drought-resistant water-preserving kind clothing agent can raising seed is described, the germination of seed is had very big promoter action.
Embodiment 7: drought resisting wheat seed dressing.
Drought resisting wheat seed dressing is made of following quality percentage composition raw material:
Gamma-polyglutamic acid-wettable powder 4% (gamma-polyglutamic acid-that wherein contains 15% (w/w)), polyacrylamide 3%, Triton X-100 0.5%, manganous sulfate 0.05%, zinc sulfate 0.2%, derosal 3%, carbofuran 3%, red pigment 0.7%, all the other compositions are water.
Above kind of clothing raw material added the abundant mixing of mixing tank make wheat seed coating agent.The wheat seed of 25 mass parts and the coating agent for seed of 1 mass parts are made the wheat coating seeds in the dressing machine.
Wheat breed is peaceful wheat 13, the wheat seed of getting Cotton seeds reaches not, and dressing contrasts each 400 in seed, each handles 100, repeat for 4 times, be seeded in the germination box by GB/T3543.5-1995 (casting bed, 25 ℃) and carry out the standard germination test, the every processing in the 7th day of germinateing is got seedling 10 strains and is measured physical signs.
Table 6 different treatment is to the influence of wheat seedling physical signs
Annotate: different lowercases are illustrated in significant difference on 0.05 level in the same row.
As shown in Table 6, the root system vigor of Cotton seeds wheat seedling obviously improves compared with the control, and has reached significant difference, and the catalase in the seedling (CAT) can be eliminated hypercellular H
2O
2, the structure of protective membrane, the catalase in the seed seedling of Cotton seeds obviously improves compared with the control and has reached significant difference, and peroxidase (POD) also has decomposing H
2O
2Effect, the contrast of the wheat seedling POD specific activity of Cotton seeds has improved 21.1%, has strengthened the ability of removing free radical, thus the integrity of protective membrane has strengthened the resistance of wheat.
Claims (9)
1. drought-resistant water-preserving kind clothing agent that contains gamma-polyglutamic acid-is characterized in that it comprises following component by mass percent:
Gamma-polyglutamic acid-0.02～1%,
Tackiness agent 0.5～5%,
Tensio-active agent 0.05～2%,
Trace element 0.2～6%,
Sterilant 0.5～9%,
Sterilant 0.2～5%,
Warning colouration 0.5～1.2%,
All the other are water.
2. the drought-resistant water-preserving kind clothing agent that contains gamma-polyglutamic acid-according to claim 1, it is characterized in that, described gamma-polyglutamic acid-is the pure product of gamma-polyglutamic acid-, or replaces the pure product of gamma-polyglutamic acid-with gamma-polyglutamic acid-salt or the wettable powder that comprises the fermenting culture of gamma-polyglutamic acid-or contain gamma-polyglutamic acid-; The gamma-polyglutamic acid-salt or the consumption of wettable powder that comprises the fermenting culture of gamma-polyglutamic acid-or contain gamma-polyglutamic acid-are in wherein contained gamma-polyglutamic acid-.
3. the drought-resistant water-preserving kind clothing agent that contains gamma-polyglutamic acid-according to claim 1 is characterized in that, described tackiness agent is any one or a few the mixture in polyacrylamide, polyoxyethylene glycol, starch and the Sudan Gum-arabic.
4. the drought-resistant water-preserving kind clothing agent that contains gamma-polyglutamic acid-according to claim 1 is characterized in that, described tensio-active agent is the mixture of any one or two kinds in Triton X-100 and the Voranol EP 2001.
5. the drought-resistant water-preserving kind clothing agent that contains gamma-polyglutamic acid-according to claim 1 is characterized in that, described trace element is any one or a few the mixture in manganese salt, zinc salt, molysite, boron salt, mantoquita, molybdenum salt, magnesium salts, sylvite and the calcium salt.
6. the drought-resistant water-preserving kind clothing agent that contains gamma-polyglutamic acid-according to claim 1 is characterized in that, described sterilant is any one or a few the mixture in triazolone, derosal, paclobutrazol, m-tetrachlorophthalodinitrile and the fenaminosulf.
7. the drought-resistant water-preserving kind clothing agent that contains gamma-polyglutamic acid-according to claim 1 is characterized in that, described sterilant is any one or a few the mixture in carbofuran and the Provado.
8. the drought-resistant water-preserving kind clothing agent that contains gamma-polyglutamic acid-according to claim 1 is characterized in that described warning colouration is redness, green, yellow, black, blueness or white pigment.
9. the described preparation method who contains the drought-resistant water-preserving kind clothing agent of gamma-polyglutamic acid-of claim 1, it is characterized in that, thorough mixing in gamma-polyglutamic acid-, binding agent, tensio-active agent, trace element, sterilant, sterilant, warning colouration and the water adding mixing tank of formula ratio is evenly made.
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